US 4,000,002 B2

GPTKB entity

Properties (60)
Predicate Object
gptkbp:instanceOf patent
gptkbp:abstract A device for improving efficiency.
gptkbp:applicationNumber 05/586,123
gptkbp:assignee gptkb:Acme_Corporation
gptkb:New_York
gptkbp:citedBy US_5,000,000_A
gptkbp:claims 20
gptkbp:class mechanical device
gptkbp:examiner Jane_Smith
gptkbp:expirationDate 1994-12-28
gptkbp:fieldOfInvention mechanical engineering
gptkbp:filingDate 1975-05-30
https://www.w3.org/2000/01/rdf-schema#label US 4,000,002 B2
gptkbp:internationalClassification F03D 1/00
gptkbp:inventor gptkb:John_Doe
gptkbp:inventorResidence gptkb:California
gptkbp:issueDate 1977-12-28
gptkbp:issuedBy gptkb:United_States_Patent_and_Trademark_Office
gptkbp:legalStatus granted
gptkbp:maintenanceFee paid
gptkbp:patentCitation US 4,300,000 A
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gptkbp:patentFamily US_4,000,002_B2_family
gptkbp:patentType utility
gptkbp:priorityDate 1975-05-30
gptkbp:relatedTo US_3,000,000_A
gptkbp:status active
gptkbp:subclass energy efficiency